Quiz 3 Chemical Formula and Naming-solutions

Quiz 3 Chemical Formula and Naming-solutions - Version...

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Version 141/ACADB – Quiz 3 Chemical Formula and Naming – lyon – (51155) 1 This print-out should have 10 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 1 2 3 4 5 6 7 AA AB AC AD BA BB BC 8 9 10 BACK NEXT BD CA CB CC CD Be sure to select enter (E) after you enter the 5-letter code. Once your correct ver- sion number appears in your box, select enter again - the number 1 will appear indicating that you are at question 1. You must select enter after each two-letter answer code and CD enter when you want to move to the next question. Blue = correct answer, Red = incorrect an- swer and greenish-gray = question is already answered. 001 10.0points How many water molecules are associated with the hydrated compound called man- ganese (II) chloride tetrahydrate? 1. 7 2. 6 3. 5 4. 3 5. 4 correct Explanation: The prefix in front of the word “hy- drate” indicates the number of attached water molecules to the formula unit. (See “naming hydrates” in the reading section of experi- ment 2.) The prefix tetra represents four water molecules. 002 10.0points From the following ionic compounds, choose the name-formula pair that is NOT COR- RECTLYMATCHED . 1. silver hydroxide AgOH 2. aluminum phosphate AlPO 4 3. manganese (III) oxide Mn 2 O 3 4. calcium acetate CaCH 3 COO correct 5. zinc carbonate ZnCO 3 Explanation: Calcium ion is +2 in salt compounds and the acetate ion has a -1 charge. Therefore
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